The Study Of Fine Reservoir Description And Well Pattern Adjustment In Binnan Block

The Binnan block of the Gang Zhong oil field is a typical complex fault block reservoir,the structure is broken,the fracture system is complex,the reservoir longitudinal evolution is fast,the lateral change is large,the sand body connection is not clear.After more than 50 years of development,it has entered the high-water development stage.Due to the characteristics of oil reservoir and the continuous development of many years,the remaining oil distribution is highly dispersed,the network of injection-production well is not perfect,and the contradictions in the interlayer layer are becoming more and more serious.The development level of oilfield is restricted.Therefore,it is of great significance to analyze the distribution of residual oil by fine oil reservoir and to conduct reservoir engineering analysis and reconstruction.In this paper,based on 2015 new collection of "Two broad and one high" 3d seismic data,applying the technology of fine stratigraphic correlation,multiwell stereoscopic technology,well seismic horizon calibration loop iteration to establish fine stratigraphic framework of the single sand body level;To carry out a detailed study on sedimentary microfacies,reveal the sedimentary evolution,based on the single sand layer sign of sedimentary facies and logging facies analysis,summarizes the fan delta,nearshore subaqueous fan and lake facies different facies model and different depositional time unit of sedimentary microfacies and sand body distribution.A three-dimensional geological model was established to study the residual oil control factors using numerical simulation technology.On this basis,the research on reservoir engineering is carried out,and the adaptive analysis of the current development layer system and injection-production well network is carried out.The development layer system and the injection-production well network study are carried out in the single-sand body.Through these studies,formed a set of complex fault block oilfield development in latefine reservoir description and the reconstruction of the pattern structure process method,summarizes the reservoir engineering analysis main parameter selection and reasoning methods.To provide the basis for the development and adjustment of the same type of reservoir.